감사합니다.

// Move the given window to the centre of the screen

// and bring it to the top.

void CentreWindow(HWND hwnd)

{

RECT winrect, workrect;

// Find how large the desktop work area is

SystemParametersInfo(SPI_GETWORKAREA, 0, &workrect, 0);

int workwidth = workrect.right -  workrect.left;

int workheight = workrect.bottom - workrect.top;

// And how big the window is

GetWindowRect(hwnd, &winrect);

int winwidth = winrect.right - winrect.left;

int winheight = winrect.bottom - winrect.top;

// Make sure it's not bigger than the work area

winwidth = min(winwidth, workwidth);

winheight = min(winheight, workheight);

// Now centre it

SetWindowPos(hwnd, 

HWND_TOP,

workrect.left + (workwidth-winwidth) / 2,

workrect.top + (workheight-winheight) / 2,

winwidth, winheight, 

SWP_SHOWWINDOW);

SetForegroundWindow(hwnd);

}